I just bought form a friend a Linksys RT31P2 that he used to have with Vonage service, does anyone know if I will be able to use it again with Vonage instead of the Motorola VT1005V that I am currently using? Thank you!

I have heard that people have difficulty getting Vonage to activate a device that was previously active on a different account. Whether this is a sales or security position is debatable, but I suspect you may not be able to activate the device on your account.